In preparation for the birth of your baby, your cervix effaces (thins and stretches) and dilates (opens) so your baby can fit through the birth canal. This cervical ripening can begin days or even ...

Your cervix doesn’t open in a single, smooth motion. It softens, shortens, and dilates under the rhythm of contractions. At 9 cm, most of that work is done, but a thin lip of tissue still remains, ...

Epidural analgesia initiated early in labor (when the cervix is less than 4.0 cm dilated) has been associated with an increased risk of cesarean delivery. It is unclear, however, whether this increase ...